Perseid meteor promises a spectacular show
Published 12/08/2010 | 05:15
Stargazers are advised to take a good spot away from city lights to enjoy the celestial delights during the Perseid meteor shower over Northern Ireland tonight.
A shower of shooting stars is set to descend on Northern Ireland tonight as the Earth sweeps through a cloud of shining space particles.
Experts say tonight should offer almost ideal conditions to watch the Perseid meteor shower as a moonless night combines with favourable weather conditions.
Watchers who take up position in a good spot, well away from city lights, may be able to spot as many as 80 meteors per hour if the night sky is dark and clear — averaging more than one a minute.
The shower will be at its height at 10pm, according to the Irish Astronomical Association (IAA).
At this time every year the Earth sweeps through a storm of tiny dust particles originating from Comet Swift-Tuttle which rush into our atmosphere at speeds of about 60 miles per second before they are burned away in the flash of light that we see as a meteor.
This shower is known as the Perseids because the meteors appear to come from the constellation of Perseus, which is rising in the north-easterly part of the sky when it gets dark every evening.
The Perseid cloud consists of particles ejected by the comet as it travels on its 130-year orbit — many of them around a thousand years old.
The Perseids are sometimes known as the tears of St Lawrence, since August 10 is the date of the saint’s martyrdom.
Experts says Perseids can be seen from early August until around the 17th, but most will be visible from August 11-13, with the peak tonight.
Philip Baxter, president of the IAA, said: “If you look to the north-east and look overhead you’ll see the shooting stars which are small grains of sand entering the atmosphere, creating a streak of light as they go across.
“If it’s nice and clear and dark, you should be able to see maybe up to 80 in an hour.
“They go very fast so you never know where they are going to appear.
“If you’re looking down railway tracks, they appear to meet at a point — it’s the same with meteors. They appear to originate at one point in the sky and diverge to different parts of the sky.”
The IAA is hoping to organise a family picnic at Delamont Country Park in Co Down at 8pm tonight — so anyone who wants to attend is invited to bring along some sausages for a fry-up as well as a sun lounger from which to watch the stars.
“That should take us to 10pm or 10.30pm and by the time we’ve cleared up we can lie and watch the meteors for an hour or so,” Mr Baxter said.
An update will go on the www.irishastro.org website at around 6pm today to reveal whether the event will go ahead.
The best way to see meteors is to go somewhere well away from the light pollution of roads, towns and cities and allow half-an-hour for your eyes to dark-adapt.
Meteogroup forecaster Matt Dobson said conditions are looking good, with clear spells throughout the night.
“The best clear spell will probably be in the east — there is a band of cloud in the west that might edge in towards more westerly areas,” he said.
“Belfast and many of the central and easterly areas will be having quite a few clear spells.
“There will be a bit of a breeze, with a moderate to fresh northerly wind — overall, fairly pleasant conditions.”
More details at www.irishastro.org.
Best places to view the Perseids:
- Downhill beach — beaches offer a great expanse of unpolluted night sky.
- Glenariff Forest Park — astronomers suggest a forest clearing would be ideal to block out light from nearby settlements.
- Lough Neagh — a big expanse of darkness without too much light pollution.
- Tyrella beach — weather forecasters predict the best clear spells will be in the east of the province.